Although the steel Butler Creek is probably the most economical choice for something that maximally reduces OAL and will not fall apart the first time you use it, my experience has been that is leaves a lot to be desired. As already mentioned, LOP is compromized. In combination with the insufficient drop this means many bruised cheeks, especially if you have rifle sights like me. If you are planning to take aimed shots with your SG, you'll quickly become frustrated with this. On the upside, the lockup on these stocks is tight and functional, although, because the retaining/release pin is only mounted with one set screw, some up/down slop develops over time. Now that I am stuck with the stock, i've considered several solutions to its shortcomings. If you have access to a welder, the drop can easily be corrected and an additional spacer can be placed between the recoil pad and the tube stock to increase LOP. On the other hand if I was to do it again, I'd accept another 4 or so inches of OAL, cough up another $30 and try a Knoxx stock w/ a recoil reducer instead. Than again the grass is always greener elsewhere, and I'm sure someone will chime in about the shortcomings of the Knoxx soon enough. BTW, I've handled the plastic version of the BC stock and would not recommend it.